Windmill.



' No. 893,062. PATENTBD JULY 14,1908.

- .J. A. GARLSON.

WINDMILL. APPLIOATION FILED AUG.23,,1907.

JOHN A. OARLSON, CHICAGO, ILLINOIS.

WIN'DMILL.

Specification oi -Letters Patent.

Patented July 14, 1908.

Application filed August 23, 1907. Serial No. 389,895.

To all whom it'may concern:

Be it known that I, JoHN A. CARLsoN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Windmill, of which the following is a specification.

This invention relates to wind mills and its object is to provide a wheel particularly designed for use where it is desired to obtain a high speed and considerable power.

A still further object is to provide novel regulating means whereby the pump mechanism can be readily thrown into or out of gear with the wheel of the wind mill according to the velocity of the wind.

With these and other objects in View the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a front elevation of a wind mill embodying the present improvements, a portion of the head of the tower being shown in section. Fig. 2 is a section on line xr, Fig. 1. Fig. 3 is a section on line yy, Fig. 1. Fig. 4 is an enlarged plan view of the vanes and the power transmitting mechanism.

Referring tothe figures by characters of reference, 1 designates a tower of suitable construction having a head 2 on which is mounted a turn table 3 preferably provided with anti-friction devices such as balls 4 so that the turn table can readily rotate. Extending laterally from the turn table 3 are arms 5 constituting end bearin s for a shaft 6. This shaft is also journale adjacent its center upon a standard 7 projecting upward from the turn table. Feathered upon the shaft 6 close to the standard 7 is a clutch member 8 normally held in engagement by means of a spring 9 with the clutch face 10 of a gear 11 loosely mounted on shaft 6. This gear meshes with another gear 12 to which the pump rod 13 is pivotally connected as indicated at 14. A small vane 15 is secured at the end of a'rearwardly extending.

arm 16 and pivotallyconnected to a standard 17 upon the turn table 3 is a large regulating vane 18. A spring 19 serves to hold this vane normally at a predetermined angle to vane 15. A bell crank lever 20 is pivotally supported upon a bracket 21 adjacent the clutches and one end of this lever loosely engages the clutch while its other end is connected by means of a rod 22 with an arm 23 extending laterally from the vane 18.

The wheel for actuating the pump mechanism consists of two sections located between the gear 11 and the two ends of the shaft respectively. Each section consists of spiral blades 24 and 25 each blade being concavo-convex in cross section so that those portions of the blades above the shaft 6 present their concave faces to the wind while I the remaining portions of the heads present their convex faces to the Wind. It is thought that this will be clearly apparent from an inspection of Figs. 1 and 2 of the drawings. In Figs. 2 and 4 the direction of the Wind has been indicated by arrows. Obviously when the wind comes into contact with the blades the upper concave faces thereof will offer a greater resistance to the wind than will the lower convex faces and therefore the shaft 6 will be positively rotated in the direction of arrow a shown in Fig. 2. As each blade is in the form of a spiral it will be apparent that each blade is constantly in action and there is no lost power such as occurs where a Wheel is made up of blades spaced apart radially. With a wheel such as herein described a very high speed of rotation may be obtained and a corresponding increase of power secured. The two vanes 15 and 18 are normally so positioned as to hold the shaft 6 at right angles to the direction of the Wind but should the velocity ofthe wind become too great the pressure exerted against the outer faces of the vanes 15 and 18 as indicated by arrows in Fig. 4 will cause the vane 18 to swing toward the vane 15 and actuate the bell crank lever 20 through rod 22 so as to uncouple the clutch 8 from gear 1 1. The pump will there fore be thrown out of action until the velocity of the wind diminishes.

What is claimed is:

1. In a Wind mill the combination with a wheel and a revoluble support therefor; of a vane fixed in relation to the wheel, a larger vane mounted to oscillate in relation to the Wheel, power transmitting mechanism operated by the wheel, and means operated by the larger vane for uncoupling said mechanism from the wheel.

2. In a wind mill the combination with a Wheel and a revoluble support therefor; of a vane fixed in relation to and movable with the support, a larger vane movable with the support and capable of independent lateral oscillation, power transmitting mechanism normally actuated by the wheel, and means operated by the larger vane for uncoupling the wheel and mechanism.

3. In a wind mill the combination with a wheel and a revoluble support therefor; of vanes of diilerent areas movable with the support, said vanes converging toward the wheel to hold the same in the wind, one of said vanes being capable of movement independent of the other vane, power transmitting mechanism actuated by the wheel, and means operated by the independent movement of one of the vanes for uncoupling the power transmitting mechanism from the wheel.

4. In a wind mill a wheel comprising a spiral blade made up of" a plurality of whirls,

said blade being concave-convex in cross seetion, and the diameter of the spiral being uniform.

5. A wind wheel comprising a shaft, and spiral blades upon the shaft, each consisting of a plurality of whirls and concave-convex in cross section, the spirals being of uniform diameter and those portions ol the blades above the shaft presenting concave faces to the wind.

In testimony that I claim the foregoing as my own, I have hereto allixed my signature in the presence of two witnesses.

JOHN A. CAHLSON.

Witnesses M. SALMoNsoN, G. A. I.iUNl)IN 

